Serial Killer Number

Why was 6 afraid of 7? Because 7 murdered 37 children and 41 adults during the ages of 31-35 years old.

She was then sentenced to a 35 year sentence (Colombian stuff) and came out 70 years old. She then continued to go on a spree and murder 41 more people, in 2 months. 3 years later, 6 stabbed 7 as they were friends. 6 was not sentenced, but deemed a hero. He never forgets that moment. Her soul not floating above, but screaming from the torture it's receiving.